Security Advisory

CVE-2026-62947

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-15 17:55:12

Last updated 2026-07-15 19:31:18

Assigner GitHub_M

CVSS score 4.9

State PUBLISHED

Description

OpenWrt is a Linux operating system targeting embedded devices. Prior to 25.12.5, the cgi-download handler in cgi-io authorizes the requested path against the caller's ubus session file ACL before canonicalization, and rpcd session.c uses fnmatch() without FNM_PATHNAME, allowing traversal such as an allowed wildcard prefix followed by ../ to read root-readable files including /etc/shadow. This vulnerability is fixed in 25.12.5.

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